2021 Fiscal Year Final Research Report
Development of a new hydraulic turbine in open channel flow to realize a microgrid utilizing unused hydro energy source
| Project/Area Number |
20K15220
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| Research Category |
Grant-in-Aid for Early-Career Scientists
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| Allocation Type | Multi-year Fund |
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| Review Section |
Basic Section 31020:Earth resource engineering, Energy sciences-related
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| Research Institution | Kyushu University |
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Principal Investigator |
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| Project Period (FY) |
2020-04-01 – 2022-03-31
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| Keywords | サボニウス形水車 / 開水路 / マイクロ水力 / 出力特性 / 自由表面流れ |
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| Outline of Final Research Achievements |
In this research, Savonius type hydraulic turbine operating in open channel flow was developed. the turbine enables effective utilization of unused hydropower energy latent in existing infrastructure such as agricultural and irrigational channels. We proposed an installation method in which the turbine axis is horizontal in order to adapt the Savonius type hydraulic turbine, which has been used as a vertical axis, to the open channel flow. It was clarified that the distance from the free surface of the Savonius type hydraulic turbine greatly affects the torque characteristics, and that there are suitable installation conditions for each water flow condition such as water level.
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| Free Research Field |
流体工学
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| Academic Significance and Societal Importance of the Research Achievements |
日本国内には総延長が40万kmもの農業用水路が張り巡らされているが，そのほとんどが田畑へ水を供給する役割にのみ使用される．この未利用水力エネルギーを有効活用することは，持続可能な開発目標（SDGs）に合致する．本研究がターゲットとする極低落差領域の各地点におけるエネルギー規模は非常に小さいため，水車性能だけでなく経済性やメンテナンス性までも考慮する必要があり，構造や発電原理が簡易なサボニウス形水車の開発は，農業DXやIoT化を加速させ，日本の農業の発展に貢献できる．
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